| abstract |
The present invention is a compound represented by the formula (1), wherein A is (CH 2 ) a or phenylene, and R 1 , R 2 , R 3 and R 4 are the same or Independently C 1 -C 22 -n- and / or isoalkyl, C 5 -or C 6 -cycloalkyl, phenyl-C 1 -C 4 -alkyl, C 1 -C 13 -alkylphenyl or phenyl, And a, wherein a is an integer from 0 to 6 relates to detergents and detergents containing the above compounds as solvents. |